Lay for narrow-ware looms



Dec. 1, 1925 E. R. HOLMES LAY Fbn mnnow was Loous Filed Sept. 1924,

Patented Dec. 1, 1925.

UNITED STATES PATENT OFFICE.

ELBRIDGE R. HOLMES, or WORCESTER, MASSACHUSETTS, Assionon To CROMPTON &KNOWLES LOOM worms, or woRCnsTEn, MASSACHUSETTS. A CORPORATION orMASSACHUSETTS.

LAY FOR NARBOW-WARE LOOMS.

Application filed September 2, 1924. Serial No. 735,262.

To all whom it may concern:

Be it known that I, ELBRIDGE R. HOLMES, a citizen of the United States,residing at- Worcester, in the county of 'IVorcester and State ofMassachusetts, have invented a new and useful Lay for Narrow-Ware Looms,of which the following is a specification.

This invention relates to improvements in the lays of narrow ware loomsand more particularly to means for permitting angular adjustment of theshuttles and reeds of said lays.

My former Patent No. 1,462,549 shows a form of lay wherein the lay beamor batten is angularly adjustable with respect to the lay swords. Whenchanging the shuttles of a narrow ware loom it sometimes happens thattheir angular position with respect to the shed must be varied so thatthey will pass more freely through the warp threads. In my aforesaidpatent the shuttles are moved about a center intermediate the pivot ofthe lay and the batten, the result of which is to give the shuttles ahorizontal motion either backward or forward whenever they are given anew angular adjustment. This results in a displacement of the shuttlewhich must be corrected by lengthening or shortening the lay connectorto the crank shaft sothat the shuttles will occupy substantially thesame position that they were in before the angular adjustment was made.

' It is the general object of my present invention to provide meanswhereby the shuttles are adjusted angularly about a center which isclosely adjacent to or insubstan-v tial alignment with the shuttlesthemselves shuttles which move in arcuate paths, but

so that their angular adjustment will not be accompanied by anappreciable horizontal displacement. Obviously, such a constructionmakes it unnecessary to alter the length of the lay connector for eachangular adjustment ofthe shuttles.

It is to be understood that narrow ware looms may employ straightshuttles such as are illustrated herein which move in a straight line orthey'may employ circular my invention is equally applicable to eithertype of shuttle. Where more than one bank of shuttles is employed I mayconveniently locate the center of rotation between the banks so as tominimize'the horizontal displacement which is incident to angularadjustment. j

A further object of my invention is to provide means for angularlyadjusting the reed with respect to the plane of the cloth so that theangle of beat up may be varied as desired.

With these and other objects in view which will appear as thedescription proceeds, my invention resides in the combination andarrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawings wherein I have shown two forms of myinvention,

Fig. l is an end elevation of a portion of a loom incorporating myinvention,

Fig. 2 is an enlarged detail end elevation of a lay constructedaccording to my invention,

Fig. 3 is a front elevation of a portion of the lay showing the methodof attaching the batten to the lay sword, and

Fig. 4 shows a modified form of the invention employing a double bank ofshuttles.

In the drawings I have illustrated a loom side 10 having a bottom shaft11 and gear 12 which meshes with gear 13 fastened to the crank shaft 14.The crank connectors 15, one of which is shown in the drawings, areconnected at the rear ends to the crank shaft in a well known manner andhave their forward ends provided with pins 16 which pass through one ofa series of openings '17 formed in the lay sword 18. It is to beunderstood that there may be as many lay swords 18 as the width of theloom requires and each sword is bolted to a foot 19 which is pivotallymounted on a rocker pin 20. The matter thus far described is well knownand forms no part of my present invention.

In carrying out my present invention I angle iron 36 is mounted on shoes38 the lower face of each of which is arcuate as indicated at There willordinarily be as many shoes 38 as there are lay swords and in order tohold the shoes fixed with respect to the arms 31' I provide bolts whichpass thr oughthe lower arm 3'? of the angle'iron, the shoe 38, and aslot 4-1 formed in the arm 31. The slot 41 lies parallel to the plane inwhich the lay sword moves to permit adjustment of the batten forwardlyand rearwardly.

An important feature of my invention is the manner in which the arcuatesurfaces 32 and 39 are curved. shaped as to permit angular adjustment ofthe batten around a center substantially in alignment with the shuttles.As shown in Fig. 2 the surfaces 32 and 39 are concave and convex,respectively, and the under face 42 of each arm 31 is preferablyconcentric with the surface 32 so that as adjustments are made bolt 40may remain at right angles to portion 37 of the angle iron.

lVhen it is desired to adjust the angular position ofthe shuttle S fromthe position shown in Fig. 2 the bolts 40 will be released and the shoe38 moved over the boss 31 in the proper direct-ion after which the boltswill again betightened. Inasmuch as the batten moves about a centerwhich passes through the shuttle the latter will have practically nohorizontal motion with respect to the lay swords and it will thereforebe unnecessary to vary the driving connection for the lay.

In the modified form of my invention shown in Fig. 4 the brackets 50 areprovided to which are secured the lower blocks 5i and the upper blocks52 which guide the shuttles S and S respectively. The shoe 53 and thearm 54 are provided with arcuate surfaces 55 and 56, respectively, whichare struck about a center preferably located halfway between theshuttles S and S \Vhen an adjustment is made of the structure shown inFig. it the shuttles will undergo such a slight horizontal motion withrespect to the lay swordsas to render adjustment of the drivingconnections unnecessary.

, A reed (30 may be provided in either form of the invention and isadjustable with respect to the lay swords by angular movement of thebatten as hereinbefore set forth.

From the foregoing it will be seen that I have provided a simple layconstruction by which the angle of the shuttle with respect to thefabric being woven can be changed in such a way as to render unnecessaryany compensating adjustment of the driving connections of the lay.

Having thus described my invention it will be apparent that changes andmodifications may be made therein by those skilled in the artwithoutdeparting from the spirit and They are preferably so scope of theinvention, and I do not wish to be limited to the details hereindisclosed, but what I claim is:

1. In a loom, a batten structure, shuttles thereon, supporting means forsaid batten,

batten, pivots for said supportingmeans,

and co-acting arcuate faces formed on the batten and supporting means,said faces being concentric about an axis substantially in alignmentwith the shuttles.

3.-In a loom, a batten structure, shuttles movable thereon, supportingmeans for the batten, a pivotal mounting for the supporting means, andarcuate co-acting faces formed on the batten and supporting means, saidfaces being between the pivotal mounting for the supporting means andthe axis of said arcuate surfaces.

4. In a loom, a batten structure, shuttles movable thereon, supportingmeans for the batten, apivotal mounting for the supporting means, andmeans to move the batten angularly with respect to the supporting meansabout a center substantially coincident with the shuttles.

5. In a loom, a shuttle carrying batten structure, supporting means forsaid structure, and curved co-acting surfaces formed on the structureand supporting means, the surfaces on the supporting means being concavewith respect to the batten structure to cause the shuttles to have anangular motion with respect to the supporting means about an axis abovethe curved surfaces.

6. In a loom, a batten structure, shuttles movable thereon, supportingmeans for the batten, a pivotal mounting for the support ing means, acrank shaft, driving c0nnectionsbetween the crank shaft and thesupporting means, and arcuate faces formed on the batten structure andsupporting means held together in adjusted position, the center of thearcs being substantially in alignment with the shuttles.

7. In a loom, a batten structure, shuttles movable thereon, supportingmeans for the batten, a pivotal mounting for the supporting means, andmeans to adjust the angular tions from the crank shaft to the supportingmeans, and mleans to adjust the angular position of the batten withrespect to the supporting means about a center substantially coincidentwith the shuttles to permit angular adjustment of the shuttles withrespect to the supporting means without varying the longitudinalposition of the shuttles with respect to the crank shaft and drivingconnections.

8. In a loom, a batten structure, shuttles thereon, supporting means forthe batten I structure, a pivotal connection for the supporting means, acrank shaft, driving connections between the crank shaft and thesupporting means and curved co-acting surfaces formed on the battenstructure and the supporting means, the curved surface on the supportingmeans being convex with re- 10 spect to the pivotal mounting for thesupporting means and the curved surface on the batten structure beingconvex with respect to the shuttles to permit relative angularadjustment of the shuttles without substantially changing the horizontalposition of the same with respect to the crank shaft and the drivingconnections.

In testimony whereof I have hereunto afiixed my signature.

ELBRIDGE R. HOLMES.

